public function onDrops(ItemSpawnEvent $event)
{
$e = $event->getEntity();
$vec = "{$e->x}:{$e->y}:{$e->z}";
if (isset($this->itemQueue[$vec])) {
unset($this->itemQueue[$vec]);
$reflection_class = new \ReflectionClass($e);
foreach ($reflection_class->getProperties() as $properties) {
if ($properties->getName() == 'age') {
$property = $reflection_class->getProperty('age');
$property->setAccessible(true);
if ($property->getValue($event->getEntity()) == 0) {
$property->setValue($event->getEntity(), 7000);
}
}
}
}
}